Improvement in furnaces for consuming smoke



IL ARGERBRIGHT & W. ALLENSWORTH.

& Furnace for Consuming Smoke.

N 160 378 Patented March 2, I875.

1 1 r l T l THE GRAPHIC 0O.PHOTO.L|TH.39&4'I I ARK PLACLN.Y-

UNITED STATES PATENT CFFICE.

DANIEL ARGERBRIGHT AND WILLIAM ALLENSWORTH, OF TROY, OHIO.

IMPROVEMENT lN FURNACES FOR CONSUMING SMOKE.

Specification forming part of Letters Patent No. 1 60,378, dated March2, 1875; application filed July 29, 1874. i

To all whom it may concern:

Be it known that we, DANIEL ARGERBRIGHT and WILLIAM ALLENSWORTH, both ofTroy, Miami county, Ohio, have invented a new and useful Smoke-Consumer,of which the following is a specification:

Our invention is particularly designed to effect perfect combustion insteam-boiler furnaces; and consists essentially of a blast-pipe, whichbranching so as to encircle the boiler on opposite sides, the twobranches are caused totraverse the fire-chamber in front of thefire-bridge, whence emerging, they are carried horizontally forward andre-enter the furnace in both flanks in the form of small tuyeres ornozzles, the now highlyheated blast from which, combining intimatelywith the unconsumed products, operating to efl'ect complete and rapidcombustion.

1n the accompanying drawings, Figure 1 is a longitudinal section of asteam-boiler provided with our improved furnace. Fig. 2 is a horizontalsection of the same at the line X X. Fig. 3 is a transverse sectionthereof at the lines Y Y, and Fig. 4 is a perspective view of thenozzles and their accessories detached from the furnace.

A represents a common cylindrical boiler, and B its furnace, 0 being thecustomary firebridge. D is a pipe, which receives a blast of air fromany customary blower. This pipe ramifies immediately above the boiler,passing down on both sides thereof in the form of two branches, E E,which, at two slightly-diverse levels, a little in front of and higherthan the fire-bridge, traverse the fire-chamber in the manner shown at FF, and, passing outward,

extend horizontally forward, as at G ggand reenter the fire-space in theform of tuyeres or nozzles H H, whose issues project obliquely downward.I is a throttle-valve, wherewith the intensity of the air-blast isregulated.

The operation of our consumer is as follows: The blast, being carriedalong the portions of the pipe F F, becomes highly heated, and entersthe furnace in that condition of temperature and in finely-divided jets,which attack the smoke and gases in flank and on top, so as to mingleintimately with the same, and to effect complete combustion. Moreover,the portions of blast-pipe F F act as a temporary check at the throat ofthe furnace, and assist the bridge in detaining the gases in thelirechamber until entirely consumed.

We claim herein as new and of our invention- The combination of thecentral air-blast pipe D, having the throttle-valve I, the exposeddownwardly-projecting and boiler-encircling pipes E E, the portion F F,crossing the throat of the furnace above the bridge, and exposed at thatpoint and forming a check to the highly-heated gases, and the'exteriorflankpipes G G, having nozzles H H inserted obliquely downward throughthe wall of the fire-chamber, as and for the purpose set forth.

In testimony of which invention we hereunto set our hands.

DANIEL ARGERBRIGHT. WILLIAM ALLENSWORTH. Attest:

GEo. H. KNIGHT, GEORGE GREEN.

